create menu model, migration, factory, and seeder

app/Models/Menu.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Menu extends Model
+{
+    use HasFactory;
+
+    /**
+     * @var string[]
+     */
+    protected $fillable = [
+        'parent_id',
+        'name',
+        'route_or_url',
+        'icon',
+        'enable',
+        'position',
+        'actives',
+        'deleteable',
+    ];
+
+    /**
+     * @var string[]
+     */
+    protected $with = [
+        'childs',
+    ];
+
+    /**
+     * @return \Illuminate\Database\Eloquent\Relations\HasOne
+     */
+    public function parent()
+    {
+        return $this->hasOne(static::class, 'id', 'parent_id');
+    }
+
+    /**
+     * @return \Illuminate\Database\Eloquent\Relations\HasMany
+     */
+    public function childs()
+    {
+        return $this->hasMany(static::class, 'parent_id', 'id')
+                    ->with('childs')
+                    ->orderBy('position');
+    }
+
+    /**
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
+     */
+    public function permissions()
+    {
+        return $this->belongsToMany(Permission::class);
+    }
+
+    /**
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
+     */
+    public function roles()
+    {
+        return $this->belongsToMany(Role::class);
+    }
+}